Webcam preview have half image display and black screen in some resolutions
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
High
|
Gavin Guo | ||
linux (Ubuntu) |
Fix Released
|
High
|
Gavin Guo | ||
Bug Description
Dell System Inspiron 14 7000 Series 7437
CPU: Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz (4x)
GPU: 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
BiosVersion: X21
HA4-E3-C1 Primax (0bda:5601 , 50-77501WNC8)
HA7-E3-C2 Liteon (0bda:5750, _13P2SF109)
Both of the modules use realtek chipset.
In the 1280x720 resolution only have half image displayed camera preview and still image; in 960x540 resolution camera preview displayed with full black but camera LED is enabled.
Furthermore, camera test "multiple-
When testing by manually take still images in different resolution, camera will hangs when switch to another resolution.
Steps:
1. install manifest X08 and boot into OS
2. Run camera test "multiple-
Expected results: Test got passed with multiple images successfully taked in each resolution.
Actual results: Can't take still image in each resolution.
no longer affects: | linux-lts-quantal (Ubuntu) |
Changed in hwe-next: | |
assignee: | nobody → Gavin Guo (mimi0213kimo) |
status: | New → Confirmed |
Changed in hwe-next: | |
importance: | Undecided → High |
tags: | added: patch |
tags: |
added: verification-done-quantal removed: verification-needed-quantal |
Changed in hwe-next: | |
status: | Confirmed → Fix Released |
Here is the testing linux-image package with #1,#2 patches. kernel. ubuntu. com/~gavinguo/ linux-image- 3.5.0-41- generic_ 3.5.0-41. 64~precise1_ amd64.deb
http://
I did few stress test on below test platforms:
HA4-E3-C1 Primax (0bda:5601 , 50-77501WNC8)
HA7-E3-C2 Liteon (0bda:5750, _13P2SF109)
The test platforms work good in the tests:
preview with resolution change (cheese/guvcview)
Take photos.
S3 stress 30 times than preview and take photos.